Results 211 to 220 of about 3,586 (255)

A deep reinforcement learning integrated aerial RIS system for enhanced combat intelligence. [PDF]

open access: yesSci Rep
Kamal MM   +8 more
europepmc   +1 more source

Building trust before the next crisis: lessons from the avian influenza front lines. [PDF]

open access: yesFront Public Health
Togami E   +5 more
europepmc   +1 more source

Disguised Full-Duplex Covert Communications [PDF]

open access: yesSensors, 2023
Covert communications have arisen as an effective communications security measure that overcomes some of the limitations of cryptography and physical layer security.
Jihwan Moon
exaly   +3 more sources

Gaussian-Distributed Spread-Spectrum for Covert Communications [PDF]

open access: yesSensors, 2023
Covert communication techniques play a crucial role in military and commercial applications to maintain the privacy and security of wireless transmissions from prying eyes.
Weimin Zhang
exaly   +3 more sources

Dual-Functional Artificial Noise (DFAN) Aided Robust Covert Communications in Integrated Sensing and Communications

open access: yesIEEE Transactions on Communications
This paper investigates covert communications in an integrated sensing and communications system, where a dual-functional base station (called Alice) covertly transmits signals to a covert user (called Bob) while sensing multiple targets, with one of ...
Long Yang, Lu Lv, Zheng Zhang
exaly   +4 more sources

Covert Communications in Intelligent Reflecting Surface-Assisted Two-Way Relaying Networks [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2022
Covert communications is critical in many application scenarios for ensuring transmission security and privacy. Two-way protocols are widely adopted in intelligent reflecting surface (IRS) assisted relaying networks to enable covert communications and ...
Dan Deng, Xingwang Li, Shuping Dang
exaly   +2 more sources

Joint jammer selection and power optimization in covert communications against a warden with uncertain locations

open access: yesDigital Communications and Networks
In covert communications, joint jammer selection and power optimization are important to improve performance. However, existing schemes usually assume a warden with a known location and perfect Channel State Information (CSI), which is difficult to ...
Yiqing Zhou   +2 more
exaly   +2 more sources

Covert Communication With Cognitive Jammer

IEEE Wireless Communications Letters, 2020
This letter studied the covert communication with the help of the cognitive jammer over an additive white Gaussian noise (AWGN) channel. The cognitive jammer first senses Alice’s transmission; then, based on its sensing results, it determines whether to transmit the jamming signal.
Wenhui Xiong   +3 more
openaire   +1 more source

Covert and Deniable Communications

Proceedings of the 6th ACM Workshop on Information Hiding and Multimedia Security, 2018
At the first Information Hiding Workshop in 1996 we tried to clarify the models and assumptions behind information hiding. We agreed the terminology of cover text and stego text against a background of the game proposed by our keynote speaker Gus Simmons: that Alice and Bob are in jail and wish to hatch an escape plan without the fact of their ...
openaire   +1 more source

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